Strategy – Micro-rotor, maxi possibilities Patek Philippe by wholesalewatches - April 7, 20180 The micro-rotor serves to rewind automatic movements, but stands out from traditional rotors in terms of its size, it shape and its position. The customary oscillating weight is a flat half-disk topping the movement. The micro-rotor is a small, thick half-disk fully integrated into the movement. It was invented